Description : What is a Sponge? (1) A fungus (2) A fossil (3) A plant (4) An animal
Last Answer : (4) An animal Explanation: Sponges are animals of the phylum Porifera. They are multicellular organisms which have bodies full of pores and channels allowing water to circulate through them, ... and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems.